package org.feifei.pay.utils;

import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayTradePagePayRequest;
import org.feifei.pay.config.AlipayConfig;
import org.feifei.pay.domain.AlipayInfo;
import org.feifei.pay.domain.PayBill;

/**
 * @author forever
 * @Description: 阿里支付的工具类
 * @date 2021/12/18 15:53
 */
public class AlipayUtils {

    public static String pay(AlipayInfo alipayInfo, PayBill payBill) {

        try {

            //获得初始化的AlipayClient
            AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, alipayInfo.getAppid(), alipayInfo.getMerchant_private_key(), "json", AlipayConfig.charset, alipayInfo.getAlipay_public_key(), AlipayConfig.sign_type);

            //设置请求参数
            AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
            alipayRequest.setReturnUrl(AlipayConfig.return_url);
            alipayRequest.setNotifyUrl(AlipayConfig.notify_url);

            //商户订单号，商户网站订单系统中唯一订单号，必填
            String out_trade_no = payBill.getUnionPaySn();
            //付款金额，必填
            String total_amount = payBill.getMoney().toString();
            //订单名称，必填
            String subject = payBill.getDigest();
            //商品描述，可空
            String body = payBill.getDigest();

            alipayRequest.setBizContent("{\"out_trade_no\":\"" + out_trade_no + "\","
                    + "\"total_amount\":\"" + total_amount + "\","
                    + "\"subject\":\"" + subject + "\","
                    + "\"body\":\"" + body + "\","
                    + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");

            String result = alipayClient.pageExecute(alipayRequest).getBody();
            return result;
        } catch (AlipayApiException e) {
            e.printStackTrace();
        }
        return null;
    }
}
